DS6203B Datasheet, PDF (11/22 Pages) Richtek Technology Corporation – 5A, 18V, 700kHz ACOTTM Synchronous Step-Down Converter with VID Control

Typical Operating Characteristics
100
90
80
70
60
50
40
30
20
10
0
0
Efficiency vs. Output Current
VIN = 4.5V
VIN = 12V
VIN = 18V
VOUT = 1.2V, L = 1.5μH
1
2
3
4
5
Output Current (A)
1.220
Output Voltage vs. Temperature
1.215
1.210
1.205
1.200
1.195
VIN = 18V
VIN = 12V
VIN = 4.5V
1.190
1.185
1.180
-50 -25
VOUT = 1.2V, IOUT = 0A
0
25 50 75
Temperature (°C)
100 125
Choke Valley Current Limit vs. Input Voltage
8.00
7.50
VIN = 12V, VOUT = 1.2V
OC = 7A
7.00
6.50
6.00
5.50
OC = 5A
5.00
4.50
4.00
3.50
OC = 3A
3.00
2.50
4
6
8
10 12 14 16 18
Input Voltage (V)
Copyright ©2016 Richtek Technology Corporation. All rights reserved.
DS6203B-00 September 2016
RT6203B
Output Voltage vs. Input Voltage
1.210
1.205
1.200
1.195
IOUT = 0A
IOUT = 1A
IOUT = 2A
IOUT = 3A
IOUT = 4A
IOUT = 5A
1.190
VOUT = 1.2V
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Input Voltage (V)
Output Voltage vs. Output Current
1.210
1.205
1.200
1.195
VIN = 18V
VIN = 12V
VIN = 4.5V
1.190
0
VOUT = 1.2V
1
2
3
4
5
Output Current (A)
I²C Shutdown Current vs. Input Voltage
150
140
130
120
110
100
90
80
70
60
50
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Input Voltage (V)
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www.richtek.com
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